text: /**
   * Copyright 2020 The AMP HTML Authors. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS-IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  'use strict';
  
  /**
   * Gets the config for babel transforms run during `gulp dep-check`.
   *
   * @return {!Object}
   */
  function getDepCheckConfig() {
    const reactJsxPlugin = [
      '@babel/plugin-transform-react-jsx',
      {
        pragma: 'Preact.createElement',
        pragmaFrag: 'Preact.Fragment',
        useSpread: true,
      },
    ];
    const presetEnv = [
      '@babel/preset-env',
      {
        bugfixes: true,
        modules: 'commonjs',
        loose: true,
        targets: {'browsers': ['Last 2 versions']},
      },
    ];
    const depCheckPlugins = [
      './build-system/babel-plugins/babel-plugin-transform-json-import',
      './build-system/babel-plugins/babel-plugin-transform-json-configuration',
      './build-system/babel-plugins/babel-plugin-transform-jss',
      './build-system/babel-plugins/babel-plugin-transform-fix-leading-comments',
      './build-system/babel-plugins/babel-plugin-transform-promise-resolve',
      '@babel/plugin-transform-react-constant-elements',
      '@babel/plugin-transform-classes',
      '@babel/plugin-syntax-import-assertions',
      reactJsxPlugin,
    ];
    const depCheckPresets = [presetEnv];
    return {
      compact: false,
      plugins: depCheckPlugins,
      presets: depCheckPresets,
    };
  }
  
  module.exports = {
    getDepCheckConfig,
  };
  